bisecting cause commit starting from 5631c5e0eb9035d92ceb20fcd9cdb7779a3f5cc7 building syzkaller on ff51e5229e0ee846d2fd687cb0dbca13de758c66 testing commit 5631c5e0eb9035d92ceb20fcd9cdb7779a3f5cc7 with gcc (GCC) 8.1.0 kernel signature: 5668691b082ae0e6e22c67f07da7adf87fe9f701513939dbe9d938449d9a3cbd run #0: crashed: general protection fault in if_nlmsg_size run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: d0dd1cf3ec733a30a77a6abb65f97325c7ccadbdc510a419b9da98c079046ce6 all runs: OK # git bisect start 5631c5e0eb9035d92ceb20fcd9cdb7779a3f5cc7 bcf876870b95592b52519ed4aafcf9d95999bc9c Bisecting: 4839 revisions left to test after this (roughly 12 steps) [8186749621ed6b8fc42644c399e8c755a2b6f630] Merge tag 'drm-next-2020-08-06' of git://anongit.freedesktop.org/drm/drm testing commit 8186749621ed6b8fc42644c399e8c755a2b6f630 with gcc (GCC) 8.1.0 kernel signature: f200a01ca9ea125d1f1c1a284bc462c2e966b68fe3bcc18b4d84ed7fc3d4e1a1 run #0: crashed: general protection fault in if_nlmsg_size run #1: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 8186749621ed6b8fc42644c399e8c755a2b6f630 Bisecting: 2954 revisions left to test after this (roughly 12 steps) [2324d50d051ec0f14a548e78554fb02513d6dcef] Merge tag 'docs-5.9' of git://git.lwn.net/linux testing commit 2324d50d051ec0f14a548e78554fb02513d6dcef with gcc (GCC) 8.1.0 kernel signature: ff879436caea03c6ce74a97e11da98edf124ac7acd5a3d336073f0a8b8ab3ac0 run #0: crashed: general protection fault in if_nlmsg_size run #1: crashed: general protection fault in if_nlmsg_size run #2: crashed: general protection fault in __queue_work run #3: crashed: general protection fault in if_nlmsg_size run #4: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #5: crashed: WARNING in __queue_work run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in __queue_work run #7: OK run #8: OK run #9: OK # git bisect bad 2324d50d051ec0f14a548e78554fb02513d6dcef Bisecting: 1745 revisions left to test after this (roughly 11 steps) [92c59e126b21fd212195358a0d296e787e444087] Merge tag 'arm-defconfig-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 92c59e126b21fd212195358a0d296e787e444087 with gcc (GCC) 8.1.0 kernel signature: 775f23b147bfd33e5b7189c74abf23eb1b77a3899e7dc99f250553e3df167793 run #0: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 92c59e126b21fd212195358a0d296e787e444087 Bisecting: 638 revisions left to test after this (roughly 9 steps) [cdc8fcb49905c0b67e355e027cb462ee168ffaa3] Merge tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block testing commit cdc8fcb49905c0b67e355e027cb462ee168ffaa3 with gcc (GCC) 8.1.0 kernel signature: f80c35a9bb1dd179c3105ffac7de64ea05c7da2451c5b63482d5a00ca070e4d4 run #0: crashed: INFO: trying to register non-static key in __kernfs_remove run #1: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad cdc8fcb49905c0b67e355e027cb462ee168ffaa3 Bisecting: 272 revisions left to test after this (roughly 8 steps) [ab5c60b79ab6cc50b39bbb21b2f9fb55af900b84] Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 testing commit ab5c60b79ab6cc50b39bbb21b2f9fb55af900b84 with gcc (GCC) 8.1.0 kernel signature: cff65c9a481e2edec6aae29411564bb6bf0110dee4462a68a7667daf4f7ca06b run #0: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #1: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #2: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #3: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad ab5c60b79ab6cc50b39bbb21b2f9fb55af900b84 Bisecting: 160 revisions left to test after this (roughly 7 steps) [690b25675f5c9c082cb1b902e6d21dd956754e7e] Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt testing commit 690b25675f5c9c082cb1b902e6d21dd956754e7e with gcc (GCC) 8.1.0 kernel signature: ec7a69c768ec62aaada1f789b0f6f0384ba64c56b1c55930d8f2b4f4ff3fa11a run #0: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #1: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #2: crashed: WARNING: ODEBUG bug in netdev_run_todo run #3: crashed: general protection fault in if_nlmsg_size run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: can't ssh into the instance # git bisect bad 690b25675f5c9c082cb1b902e6d21dd956754e7e Bisecting: 86 revisions left to test after this (roughly 7 steps) [25ce28caaa1ddc2ef8848c5a09e63a9bc0a5d455] btrfs: make btrfs_free_reserved_data_space take btrfs_inode testing commit 25ce28caaa1ddc2ef8848c5a09e63a9bc0a5d455 with gcc (GCC) 8.1.0 kernel signature: 211b33eb7bc5bd3ebbc007edbf3ca182a5015fee22d125cb1d39817567cf667d run #0: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #1: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 25ce28caaa1ddc2ef8848c5a09e63a9bc0a5d455 Bisecting: 42 revisions left to test after this (roughly 6 steps) [bab16e21e8bbd644067289cfa328f8a67f3e333d] btrfs: don't use UAPI types for fiemap callback testing commit bab16e21e8bbd644067289cfa328f8a67f3e333d with gcc (GCC) 8.1.0 kernel signature: 2a9f08e979d9403ca0c9b44cd15328e57253982a7c30584ea1db7652a5d7a56b run #0: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #1: crashed: WARNING in hci_conn_timeout run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad bab16e21e8bbd644067289cfa328f8a67f3e333d Bisecting: 21 revisions left to test after this (roughly 5 steps) [100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d] btrfs: scrub: clean up temporary page variables in scrub_checksum_tree_block testing commit 100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d with gcc (GCC) 8.1.0 kernel signature: c0ebaa3eb0d41379d49c18c4026d5ef6eb7bed6bedd85100e0e956be7ce4dd75 run #0: crashed: general protection fault in __queue_work run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d Bisecting: 10 revisions left to test after this (roughly 3 steps) [46d4dac888ebe083d61f18acb16a6988e9062268] btrfs: remove the start argument from btrfs_free_reserved_data_space_noquota() testing commit 46d4dac888ebe083d61f18acb16a6988e9062268 with gcc (GCC) 8.1.0 kernel signature: f73cd5ca44557f9f23b235f76b296defe001c25e0fe0f4c2a3cd15fd001315f0 run #0: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #1: crashed: WARNING: ODEBUG bug in netdev_run_todo run #2: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 46d4dac888ebe083d61f18acb16a6988e9062268 Bisecting: 4 revisions left to test after this (roughly 2 steps) [e3ba67a108ff5a2657990014d3ed4488bd665be6] btrfs: factor out reading of bg from find_frist_block_group testing commit e3ba67a108ff5a2657990014d3ed4488bd665be6 with gcc (GCC) 8.1.0 kernel signature: 07a4ecfae0d3744c5529e4a9f78667bb121664758ad9237460480cae2b72607f run #0: crashed: general protection fault in if_nlmsg_size run #1: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #2: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #3: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #4: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: can't ssh into the instance # git bisect bad e3ba67a108ff5a2657990014d3ed4488bd665be6 Bisecting: 2 revisions left to test after this (roughly 1 step) [9e22b925985e71c6acf0dba03f9b99a56806a137] btrfs: read stripe len directly in btrfs_rmap_block testing commit 9e22b925985e71c6acf0dba03f9b99a56806a137 with gcc (GCC) 8.1.0 kernel signature: 1902cdbe048ddbb4aa1e94991e47256d7750958bd688ceb202b4878c2448b170 run #0: crashed: general protection fault in if_nlmsg_size run #1: crashed: general protection fault in if_nlmsg_size run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: boot failed: can't ssh into the instance run #9: boot failed: can't ssh into the instance # git bisect bad 9e22b925985e71c6acf0dba03f9b99a56806a137 Bisecting: 0 revisions left to test after this (roughly 0 steps) [6a3c7f5c87854e948c3c234e5f5e745c7c553722] btrfs: don't balance btree inode pages from buffered write path testing commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722 with gcc (GCC) 8.1.0 kernel signature: 9253670a291575a981876fe7dc814b7a2135b389381f110488f9ec4a08768469 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in __queue_work run #1: crashed: BUG: sleeping function called from invalid context in exc_page_fault run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 6a3c7f5c87854e948c3c234e5f5e745c7c553722 6a3c7f5c87854e948c3c234e5f5e745c7c553722 is the first bad commit commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722 Author: Nikolay Borisov Date: Thu May 28 11:05:13 2020 +0300 btrfs: don't balance btree inode pages from buffered write path The call to btrfs_btree_balance_dirty has been there since the early days of BTRFS, when the btree was directly modified from the write path, hence dirtied btree inode pages. With the implementation of b888db2bd7b6 ("Btrfs: Add delayed allocation to the extent based page tree code") 13 years ago the btree is no longer modified from the write path, hence there is no point in calling this function. Just remove it. Signed-off-by: Nikolay Borisov Signed-off-by: David Sterba fs/btrfs/file.c | 2 -- 1 file changed, 2 deletions(-) parent commit 92ed301919932f777713b9172e525674157e983d wasn't tested testing commit 92ed301919932f777713b9172e525674157e983d with gcc (GCC) 8.1.0 kernel signature: e84205595695a87c7368b0938f9e9a67c666c61e41b1b9bb3e2983c6a9ddc03f culprit signature: 9253670a291575a981876fe7dc814b7a2135b389381f110488f9ec4a08768469 parent signature: e84205595695a87c7368b0938f9e9a67c666c61e41b1b9bb3e2983c6a9ddc03f revisions tested: 15, total time: 3h46m18.365100423s (build: 1h14m54.706793083s, test: 2h30m1.378795535s) first bad commit: 6a3c7f5c87854e948c3c234e5f5e745c7c553722 btrfs: don't balance btree inode pages from buffered write path recipients (to): ["clm@fb.com" "dsterba@suse.com" "dsterba@suse.com" "josef@toxicpanda.com" "linux-btrfs@vger.kernel.org" "nborisov@suse.com"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: BUG: sleeping function called from invalid context in exc_page_fault BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1253 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 10842, name: syz-executor.0 4 locks held by syz-executor.0/10842: #0: ffff8880b6159120 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1577 [inline] #0: ffff8880b6159120 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_sock_connect+0x5e/0x310 net/bluetooth/sco.c:571 #1: ffff888110af2078 (&hdev->lock){+.+.}-{3:3}, at: sco_connect net/bluetooth/sco.c:227 [inline] #1: ffff888110af2078 (&hdev->lock){+.+.}-{3:3}, at: sco_sock_connect+0x9f/0x310 net/bluetooth/sco.c:576 #2: ffffffff842e0540 (rcu_read_lock){....}-{1:2}, at: __queue_work+0x5d/0x6a0 kernel/workqueue.c:1412 #3: ffff8881238beda8 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:56 [inline] #3: ffff8881238beda8 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1236 [inline] #3: ffff8881238beda8 (&mm->mmap_lock#2){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1365 [inline] #3: ffff8881238beda8 (&mm->mmap_lock#2){++++}-{3:3}, at: exc_page_fault+0x158/0x780 arch/x86/mm/fault.c:1418 irq event stamp: 168 hardirqs last enabled at (167): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (167): [] _raw_spin_unlock_irqrestore+0x59/0x80 kernel/locking/spinlock.c:191 hardirqs last disabled at (168): [] queue_work_on+0x43/0xd0 kernel/workqueue.c:1515 softirqs last enabled at (130): [] lock_sock_nested+0x36/0x90 net/core/sock.c:3050 softirqs last disabled at (128): [] spin_lock_bh include/linux/spinlock.h:358 [inline] softirqs last disabled at (128): [] lock_sock_nested+0x2c/0x90 net/core/sock.c:3049 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 10842 Comm: syz-executor.0 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xb3/0xec lib/dump_stack.c:118 ___might_sleep.cold.109+0xfb/0x10f kernel/sched/core.c:6941 do_user_addr_fault arch/x86/mm/fault.c:1253 [inline] handle_page_fault arch/x86/mm/fault.c:1365 [inline] exc_page_fault+0x173/0x780 arch/x86/mm/fault.c:1418 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:542 RIP: 0010:__queue_work+0xe2/0x6a0 kernel/workqueue.c:1434 Code: 03 00 00 44 89 ff e8 8d 2a f1 ff 4c 89 ef 89 c6 e8 a3 d1 ff ff 48 8b 7d d0 48 89 c3 e8 07 dc ff ff 48 85 c0 0f 84 30 01 00 00 <48> 39 03 0f 85 af 02 00 00 48 89 c7 e8 bd 3a e3 01 8b 43 18 85 c0 RSP: 0018:ffffc90001ddfcf0 EFLAGS: 00010086 RAX: ffff88812acc1c00 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffffffff842d6f60 RBP: ffffc90001ddfd28 R08: ffff88812b800050 R09: ffff88812b800000 R10: 0000000000000000 R11: ffffffff842d6fa8 R12: 000000000000001e R13: ffff88810f7fec00 R14: 0000000000000040 R15: 0000000000000001 queue_work_on+0xb1/0xd0 kernel/workqueue.c:1518 queue_work include/linux/workqueue.h:507 [inline] hci_send_cmd+0x3c/0x60 net/bluetooth/hci_core.c:3841 hci_acl_create_connection+0xcf/0x120 net/bluetooth/hci_conn.c:236 hci_connect_acl+0x138/0x240 net/bluetooth/hci_conn.c:1261 hci_connect_sco+0x2c/0x350 net/bluetooth/hci_conn.c:1273 sco_connect net/bluetooth/sco.c:240 [inline] sco_sock_connect+0xf3/0x310 net/bluetooth/sco.c:576 __sys_connect+0x95/0xc0 net/socket.c:1871 __do_sys_connect net/socket.c:1882 [inline] __se_sys_connect net/socket.c:1879 [inline] __x64_sys_connect+0x11/0x20 net/socket.c:1879 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ce79 Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f17e0352c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000002180 RCX: 000000000045ce79 RDX: 0000000000000008 RSI: 0000000020000140 RDI: 0000000000000006 RBP: 000000000118c000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfcc R13: 00007fff9ad753bf R14: 00007f17e03539c0 R15: 000000000118bfcc BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD b6c4b067 P4D b6c4b067 PUD b6d41067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 10842 Comm: syz-executor.0 Tainted: G W 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__queue_work+0xe2/0x6a0 kernel/workqueue.c:1434 Code: 03 00 00 44 89 ff e8 8d 2a f1 ff 4c 89 ef 89 c6 e8 a3 d1 ff ff 48 8b 7d d0 48 89 c3 e8 07 dc ff ff 48 85 c0 0f 84 30 01 00 00 <48> 39 03 0f 85 af 02 00 00 48 89 c7 e8 bd 3a e3 01 8b 43 18 85 c0 RSP: 0018:ffffc90001ddfcf0 EFLAGS: 00010086 RAX: ffff88812acc1c00 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffffffff842d6f60 RBP: ffffc90001ddfd28 R08: ffff88812b800050 R09: ffff88812b800000 R10: 0000000000000000 R11: ffffffff842d6fa8 R12: 000000000000001e R13: ffff88810f7fec00 R14: 0000000000000040 R15: 0000000000000001 FS: 00007f17e0353700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000b6098000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0xb1/0xd0 kernel/workqueue.c:1518 queue_work include/linux/workqueue.h:507 [inline] hci_send_cmd+0x3c/0x60 net/bluetooth/hci_core.c:3841 hci_acl_create_connection+0xcf/0x120 net/bluetooth/hci_conn.c:236 hci_connect_acl+0x138/0x240 net/bluetooth/hci_conn.c:1261 hci_connect_sco+0x2c/0x350 net/bluetooth/hci_conn.c:1273 sco_connect net/bluetooth/sco.c:240 [inline] sco_sock_connect+0xf3/0x310 net/bluetooth/sco.c:576 __sys_connect+0x95/0xc0 net/socket.c:1871 __do_sys_connect net/socket.c:1882 [inline] __se_sys_connect net/socket.c:1879 [inline] __x64_sys_connect+0x11/0x20 net/socket.c:1879 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ce79 Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f17e0352c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000002180 RCX: 000000000045ce79 RDX: 0000000000000008 RSI: 0000000020000140 RDI: 0000000000000006 RBP: 000000000118c000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfcc R13: 00007fff9ad753bf R14: 00007f17e03539c0 R15: 000000000118bfcc Modules linked in: CR2: 0000000000000000 ---[ end trace 9c82d64669309ec6 ]--- RIP: 0010:__queue_work+0xe2/0x6a0 kernel/workqueue.c:1434 Code: 03 00 00 44 89 ff e8 8d 2a f1 ff 4c 89 ef 89 c6 e8 a3 d1 ff ff 48 8b 7d d0 48 89 c3 e8 07 dc ff ff 48 85 c0 0f 84 30 01 00 00 <48> 39 03 0f 85 af 02 00 00 48 89 c7 e8 bd 3a e3 01 8b 43 18 85 c0 RSP: 0018:ffffc90001ddfcf0 EFLAGS: 00010086 RAX: ffff88812acc1c00 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffffffff842d6f60 RBP: ffffc90001ddfd28 R08: ffff88812b800050 R09: ffff88812b800000 R10: 0000000000000000 R11: ffffffff842d6fa8 R12: 000000000000001e R13: ffff88810f7fec00 R14: 0000000000000040 R15: 0000000000000001 FS: 00007f17e0353700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000b6098000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400